refactor SaveSmallFile

src/constants.a

@@ -9,7 +9,7 @@
 ; D000..E5F4 - persistent data structures (per-game cheat categories,
 ;              gGlobalPrefsStore, gGamesListStore)
 ; ...unused...
-; EC3B..FFF9 - main program code
+; EC56..FFF9 - main program code
 ; FFFA..FFFF - NMI, reset, IRQ vectors
 ;
 ; LC RAM BANK 2

src/glue.prorwts2.a

@@ -93,15 +93,12 @@ LoadDHRFile
 ;
 ; supports paths, see note
 ;
-; in:    stack contains 2 bytes of parameters:
-;        +1 address of data buffer
+; in:    A/Y points to data buffer
+;        gPathname contains path+filename to write
 ; out:   all flags clobbered
 ;        all registers clobbered
-;        stack set to next instruction after parameters
 ;------------------------------------------------------------------------------
 SaveSmallFile
-         +PARAMS_ON_STACK 2
-         +LDPARAM 1
          +STAY ldrlo                 ; set data buffer address for ProRWTS2
          jsr   SwitchToBank2
          jsr   SaveSmallFileInternal

src/parse.prefs.a

@@ -150,9 +150,8 @@ pref_set
 
          +LDADDR kGlobalPrefsFilename ; write prefs buffer to file on disk
          jsr   SetPath
-         jsr   SaveSmallFile
-         !word kGlobalPrefsBuffer
-         rts
+         +LDAY kGlobalPrefsBuffer
+         jmp   SaveSmallFile
 
 @addStringFromStore
          +STAY @key